2nd Grade Inv. 4 Solids and Liquids Test Review

Front

What is a reversible change?

Back

A reversible change is a change that can be undone or reversed, like folding a shirt.

Front

What is an irreversible change?

Back

An irreversible change is a change that cannot be undone, like toasting bread.

Front

What happens when you freeze a liquid?

Back

When you freeze a liquid, it turns into a solid.

Front

What is matter that can’t be seen but is all around us?

Back

Gas is matter that can’t be seen but is all around us.

Front

What do we call a single thickness of a material?

Back

A single thickness of a material is called a layer.

Front

Can you give an example of a reversible change?

Back

An example of a reversible change is melting ice and then refreezing it.

Front

Can you give an example of an irreversible change?

Back

An example of an irreversible change is baking a cake.

Front

What is the process of turning a solid into a liquid called?

Back

The process of turning a solid into a liquid is called melting.

Front

What is the process of turning a liquid into a gas called?

Back

The process of turning a liquid into a gas is called evaporation.

Front

What is the difference between solids, liquids, and gases?

Back

Solids have a fixed shape, liquids take the shape of their container, and gases fill the entire space available.